Machine for making roofing-strips.



0. A. HEPPES. MACHINE FOR MAKINGROOFING STRIPS.

APPLICATION FILED IU LY'26| 1915.

Patented Jan. 7, 1919.

, To 'all whom it may concern.'

o'rro a. nnrrns,

or lita GRANGE, rnnrnrors.

MACHINE FOB, MAKING: ROOFING-STB'IPS.

Specification of Letters Patent.

Patented dan. 7, 19.1%.

Application led July 26, 1915. Serial No. 41,926.

Be it known that I, OTTO A. Hnrrns, a citizen of the United States, residing at La Grange, in the county of Cook and State of Illinois, have invented certain new and useful Improvementsin ing Roofing-Strips, of which the following is a specification.

Machines for Mak- @ne of the objects of my inventionis t'o provide an improved machine for making roong strips which have dentated longitudinai edges, each edge of which comprises a preferably uniform series of projections and intermediate depressions, whereby to produce ornamental designs simulating the ap# pearance of shingles, slate Y or tile when lapped and laid upon a roof.

Another objectr of my invention is to provide a machine thatI will shear such strips transversely "from a continuous sheet of uniform width in which the configuration or uneven-edges of a given strip are similar but having its component parts preferably lon-l gitudinally displaced, with reference to the individual members thereof, without laterally shifting the sheet or the shearing knives to provide proper relative displacement thereof, to produce the design.

Another object of my invention is to provide a machine having like rotary shearing knives but longitudinally displaced, alternating circumferentially upon either roll of a pair of coperating rotatable rolls whereby to produce a strip having its longitudinal edges so related that the upper edge `of one strip will register with the lower edge of the succeeding strip, the contiguous edges being sheared asunder so as to prevent waste of material, this effect being produced by the' machine without-the necessity of laterally shifting the sheet from which the strips may be sheared. 1

In a copending application, filed of even date herewith, I have disclosed and claimed the strips as made by the present machine.

Other and further objects of my invention will become readily apparent, to persons skilled in the art, from a consideration of the following description whentaken in con,

junction with the drawings', whereinzj Figure 1 is an elevation of a pair of cuttin rolls properly mounted upon a frame arf showing driving connections for rotating the rolls in a. proper relative direction for shearing the strips from a continuously .moving sheet of preparedrooing material.

.while the longer edge 27 Fig. 2 is a developed plan view of a part of one of the rolls.

Fig; 3 is an enlarged plan view showing part ofthe shearing knives and the manner of securing them to the face of the rolls.

' In all the views the same reference charthe intermediate train of gearing 12. Either of the rolls is provided with shearing knives 13 and la, as more clearly shown in Fig. 3.

It will be observed that the row 15 of knives is practically the same as the row 17, and that the rows 18 and 19 are substantial duplicates, the only di'erence being that the rows 18 and 19 are longitudinally displaced upon the rolls with reference to the rows 15 and 17, so that the projections 20 of each adjacent row are in the same transverse planef rIhe rows of knives on roll 9 are substantially the same as the rowsvof knives on roll 10 and so arranged that the lation with the shearing rolls 9 and 10 by the feed rolls 22 and 23.v

The strips cut by the revolving rolls are substantially of the configuration of the spaces 24 and 25 between adjacent rows of shearing knives. It is assumed that the sheet 21 is of uniform width, which is equal to the length of the rolls 9 and 10, in which event the strips cut b the rows of knives 15-19 will resemblev t e interspaces 24 and 25, respectively. In the former the left handA transverse joining edge 216l is relatively short while the transverse edge 27 is relatively long. The strip 25 has Aits ends reversed,

with reference to strip 24, the shorter end 26 being at the right hand side of the rolls, .d is at the left hand` s1 e.

as at the dotted line 28, then av strip would -be made having two shorter end edges 26 and another vstrip with two longer edges 27, in alternate relation, as the rolls are'1o tated. In this eventv the alternate strips would not be duplicates of each other, but

If the strips and the rolls were terminated,

the rolls would produce twoy types of strips, one having narrow' end edges 26" and the other having relatively' wider edges 2'7,fin alternate relation. y A .ny proper manner of preventing back lash of the rolls, and tocause the knives to properly register, as they are rotated toward each other, may be' employedfor the purpose. t

rll`he gist of my invention consists in producing a pair of rolls which will shear from a constantly moving sheet, strips requiring shearing knives of practically the same general conguration, or characteristic for their `upper and lower edges, but longitudinally displaced so that the lstrips may be sheared from a-continuously moving sheet without the necessity of axially displacing the rolls or shifting the sheet in a sidewise direction.

It is, of course, manifest that the general shape of the. shearing blades 13 and lli may be somewhat different' from those shown, and suitable sets of' rows of sharp knives may be used, on only one roller, the companion roller being blank or devoid of knives, the shearing operation' being accomplished by pressing` the fabric, by the knives of one roll into firm contact with the/other` roll untilthe edge of the knives are brought into substantial contact with the opposing roll, without departing from the spirit and scoe of my invention. l

aving described my invention, what I claim is i 1. A machine for shearing strips coinprising two parallel rotatable rolls having their peripheries separated a distance suiratones cient to contain a strip to be sheared therebetween coacting sets of like shearing knives arranged in zig-zag fashion in a gen- Veral axial directlon of said rolls, on eachroll, having connecting base flanges on one side only to secure them to the rolls, and

having cutting edges on the opposite sides from said ianges arranged for shearing iii-,-`

terposed material; means forv rotating the rolls and means for continuously feeding the -t each other, each roll having provided thereon a plurality of 'sets of like shearing knives arranged to cooperate to shear the material passing] between the rolls, said knives being zigzag in formation and arranged in pairsat spaced intervals around the rolls, the knives of each pair being arranged in opposition to each other so that the respective'projections and indentations thereof are in peripheral alinement, and therefore the sheared strip of material is out with a plurality of projections and indentations on each side thereof, said projections being in transverse alinement with each other and said indentations being in transverse alinement with each other.

In testimony whereof I hereunto set my hand/in the presence of two subscribing witnesses.

GTT() A. HEPPES. -In'ythe presence of- MARY F. ALLEN,

Fofana BAIN. 

